feat: Add speech-to-text example and documentation

- Create comprehensive README for speech-to-text integration
- Implement example script demonstrating wake word detection and transcription
- Add Windows batch script for MCP server startup
- Include detailed usage instructions, customization options, and troubleshooting guide

scripts/start_mcp.cmd

@@ -1,21 +0,0 @@
-@echo off
-setlocal
-
-:: Set environment variables
-set NODE_ENV=production
-
-:: Change to the script's directory
-cd /d "%~dp0"
-cd ..
-
-:: Start the MCP server
-echo Starting Home Assistant MCP Server...
-bun run start --port 8080
-
-if errorlevel 1 (
-    echo Error starting MCP server
-    pause
-    exit /b 1
-)
-
-pause